ASTROSAT CZTI

Data Quality Report

Orbit 44732

Creation date: 2024-06-27T23:05:49.942716
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A13_004T11_9000006018_44732cztM0_level2.fits modeM0/AS1A13_004T11_9000006018_44732cztM0_level2_quad_clean.evt
Size (bytes)566,478,72097,243,200
Size540.2 MB 92.7 MB
Events in quadrant A6,107,131656,053
Events in quadrant B3,574,520685,044
Events in quadrant C2,693,092669,349
Events in quadrant D8,110,755498,379

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0228181
B0149131
C0127151
D0284451

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62384407.053543%
B62391752.804937%
C6239290.464818%
D6239144923.224876%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7263 6239 275 275 3.79% 4.41%
B 7264 6240 85 85 1.17% 1.36%
C 7264 6240 0 0 0.00% 0.00%
D 7264 6240 1291 1291 17.77% 20.69%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 1867731 13290.02 672 657 140.5
A 15 223 1568293 11158.59 672 657 140.5
A 13 248 38440 268.94 672 657 140.5
B 0 189 520772 3867.12 677 656 134.5
B 15 36 111907 827.16 677 656 134.5
B 15 201 76156 561.35 677 656 134.5
C 12 2 25217 154.26 678 682 159.0
C 3 233 7926 45.55 678 682 159.0
C 1 3 6180 34.57 678 682 159.0
D 1 52 3515138 22035.47 626 606 159.5
D 13 249 1014052 6354.12 626 606 159.5
D 13 174 436387 2732.27 626 606 159.5

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter